Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Rodada tem um Oponente de jorge magalhaes?
 ###Tabelas: CREATE TABLE tertiary_institutions (tertiary_institutions_id AUTO_INCREMENT PRIMARY KEY, Institution VARCHAR, Location VARCHAR, Enrollment VARCHAR, Athletic nickname VARCHAR, School Colors VARCHAR, Founded INT) CREATE TABLE upcoming_films (upcoming_films_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Type VARCHAR, Planned Release VARCHAR, CC License VARCHAR, Sources available VARCHAR, Open Source Movie VARCHAR) CREATE TABLE season_by_season_results (season_by_season_results_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Manager VARCHAR, Record [a ] VARCHAR, Win % INT, Post-season record [e ] VARCHAR, Post-season win % VARCHAR, MLB affiliate VARCHAR) CREATE TABLE mixed_martial_arts_record (mixed_martial_arts_record_id AUTO_INCREMENT PRIMARY KEY, Res. VARCHAR, Record VARCHAR, Opponent VARCHAR, Method VARCHAR, Event VARCHAR, Round INT, Time VARCHAR, Location VARCHAR) CREATE TABLE current_codes (current_codes_id AUTO_INCREMENT PRIMARY KEY, Code VARCHAR, Subdivision name ( be ) (BGN/PCGN) VARCHAR, Subdivision name ( be ) (GOST) VARCHAR, Subdivision name ( ru ) (BGN/PCGN) VARCHAR, Subdivision name ( ru ) (GOST) VARCHAR, Subdivision category VARCHAR)  
SELECT AVG Round FROM mixed_martial_arts_record WHERE Opponent = jorge magalhaes